English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Hypothetical particles called heavy neutral leptons (HNLs) can be produced inlarge quantities in the cores of supernovae during the first seconds of theexplosion. These particles then decay, producing secondary energetic neutrinosthat can be detected by neutrino detectors. In this paper, I identify a regionof the HNL parameter space that could be tested using this method, assuming asupernova explosion at distances from 0.2 to 10 kpc. The range of HNLs masses$m_N \sim 160-700$ MeV and lifetimes of $\tau_N \gtrsim 0.02$ seconds can beprobed using the Hyper-Kamiokande neutrino detector. This region of theparameter space is complementary to existing bounds from primordialnucleosynthesis and to the expected sensitivity of the future SHiP experiment,thus covering a gap in our current knowledge of HNLs up to masses of $m_N\simeq 400$ MeV.

Testing heavy neutral leptons produced in the supernovae explosions with future neutrino detectors